In fact, you can mark some data into the picture according to the meaning of the question, as shown above ~
Then we can find the advertisement, and he will give it. Because two quadrangles are similar, the similarity ratio must be determined first.
Note: pay attention to which one comes first, and then repair it. For example, the similarity ratio between the left and right is 4:3 (simplified), or vice versa, that is, 3: 4, but it must be fixed, otherwise it is easy to make mistakes ~
Besides, I don't know if I copied the title wrong. FC=7 should be FG~ Please check for yourself.
After determining the similarity ratio, you can start to do some questions, because it has been fixed that the similarity ratio is more left and less right.
So AB:EF = similarity ratio 4:3 (left to right) can also be written in fractional form AB/EF=4/3.
Then, according to the given EF value, the fractional form can be cross-multiplied, and the result of AB =20/3 can be calculated by using the proportional formula.
Similarly, given FG=7, BC is calculated according to BC:FG=4/3 from left to right.
Find BC=28/3
In addition, according to the similarity of graphics, only the length changes, and the angle will not change.
Then according to the data of several angles given in the figure, you can get the angle data of the corresponding angle on the right or left, because you can't give your answer because you don't give the angle A ~
But according to the data in the figure, the angle CDA = 150, then according to the sum of the internal angles of the quadrilateral = 360, DCB=60.
Description: The sum of the internal angles of a polygon: (n-2) × 180 (n ≥ 3) n represents the number of sides.
Then you can also get a right angle. ∠HEF=70 ∠EFG=80 ∠FGH=60
One is because the topic seems to be wrong. If the long data in my answer is wrong, I can recalculate the correct answer according to the situation. For example, FG seems to be 7 ... If it is 1, it is possible. After all, the similarity ratio of the left picture should be greater than that of the right picture ~
I hope my answer can help you, thank you.